Junger Audio d07 User Manual

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jungeraudio

d07

FOREWORD

Thank you for buying and using the transmission processor d07.
You have not only acquired the latest generation of digital dynamic range

processing, but also a piece of equipment which is unique in its design and
specification.

Please read this manual carefully to ensure you have all the information you need
to use the d07.

The unit was manufactured to the highest industrial standards and went through
extensive quality control checks before it was supplied.

d07

If you have any comments or questions about installing, setting-up or using the,
please do not hesitate to contact us.

FOREWORD

d07

CONTENT

A – OPERATION MANUAL

1. Function description

1.1. Basic description

1.2. Block diagram

2. Installation

2.1. Unpack the unit

2.2. Power supply

2.3. Connections

2.4. Rack mounting

2.5. Operation safety

2.6. Synchronization of digital output

2.7. Audio connections

2.8. Remote Control

2.8.1. GPI Remote Control

2.8.2. Tally Out

2.8.3. Serial Remote Control

2.9. LAN interface (optional)

3. Location of parts and controls

3.1. Front panel

3.2. Rear panel

3.3. Switches and jumpers for configuration

4. Operation

4.1. Front panel operation / d07 keys

4.1.1. Navigation

4.1.2. Main Display

4.1.3. Menu Preset / Setup

4.1.4. Factory presets

4.1.5. User presets

4.2. Operation via web interface

5. Boot display and trouble shooting

5.1. Boot display

5.2. Error messages and trouble shooting

5.3. Initialization of the unit

6. Technical specifications

CONTENT

B – APPLICATION NOTES

1. The Junger Audio Dynamics Processor Principle

2. The Junger Audio Compressor & Expander Principle

3. The Junger Audio Processing Presets

4. LEVEL MAGIC

5. N.A.

6. Network Integration for TCP/IP Operation

7. FM-Processing d07

7.1. General

7.2. MPX-Limiting

7.3. Pre-emphasis

7.4. Terms and definitions

CONTENT

FUNCTIONAL DESCRIPTION

The mature technology of the digital transmission processor d07
has now been supplemented by the Level Magic™. The d07 is
originally designed for optimised levelling of program signals for
FM broadcast and TV transmission and reliable protection of
transmission paths against overload at the output of studios, OB
vans as well as satellite up-links. The device operates fully
digitally and, beside AES/EBU interface, it makes use of high end
24bit A/D converters so that digital dynamic processing is
possible for analog as well as digital signals.

Besides the previous levelling by means of an AGC, Compressor
and Peak-Limiter referring to the peak- level for achieving the
maximum loudness and energy of the signal, it’s now possible to
use the more signal wave adaptive new technology of the Level
Magic™ with two reference levels: An Operating-Level for signal
processing by the AGC and the Transient processor and the peak­Level for the Brickwall-Limiter.
In both operating methods you can factor the adaptive pre­emphasis, the maximum value for the peak frequency deviation
and the MPX-Limiter into levelling of the signal (see application
notes).

The dynamic range processor principles developed by Junger
Audio enable level managing devices like compressors, AGC
and limiters to be produced with exceptionally high audio quality,
without coloration, pumping, breathing, distortion or modulation
effects sometimes associated with this type of processor.
In short, almost inaudible processing - with ease of use. The
outstanding quality of the processing is based on the Multi-Loop
dynamic range control principle in combination with adaptive
controlled processing algorithms developed by Junger Audio.

The unit is easy to operate and requires only a limited number of
settings to be made by the user to achieve optimum results. All
other parameters necessary for inaudible processing are
continuously automatically controlled in response to changes in
the programme signal.

A 1

1.1

BASIC
DESCRIPTION

A 1 –Function description

1.2

BLOCK
DIAGRAM

features
 2-channel digital audio amplifier and limiter for broadcast

transmission signals

 new Level Magic™ technology
 audio signal processing also in consideration of pre-emphasis

and MPX-Power

 Digital I/Os, AES/EBU format
 24bit ADV and DAC
 Stereo and dual channel mode
 Parallel and serial remote control
 Equal functionalitiy to the processor C8007 of the C8000

modular system

Further description of the processor principles see
Application notes B!

A 1 – Function description

INSTALLATION

2

The digital audio level processor d07 was carefully packed in the factory and
the packaging was designed to protect the equipment from rough handling.
Please examine carefully the packaging and its contents for any signs of
physical damage, which may have occurred in transit.

The digital audio level processor d07 is a device under the safety category
Schutzklasse 1 in keeping with the VDE 0804 standards and may only used
with power supply installations built according to regulations.
Check the voltage details printed at the rear panel are the same as your local
mains electricity supply.

The digital audio level processor d07 is equipped with standard connectors
(see also chapter 3).
Before connecting the digital audio level processor d07 switch the power off at
all connected units.

The digital audio level processor d07 is made as standard 19“ unit (EIA
format). It occupies 1 RU (44 mm height) space in a rack. Please allow at
least additional 3“ depth for the connectors on the rear panel.
When installing the unit in a 19“ rack the rear side of the unit needs some
support, especially for mounting in flight cases.

The digital audio level processor d07 should not be installed near units which
produce strong magnetic fields or extreme heat. Do not install the audio
processor directly above or below power amplifiers.
If, during operation, the sound is interrupted or displays no longer illuminate, or
if abnormal odor or smoke is detected immediately disconnect the power cord
plug and contact your dealer or Jünger Audio.

A

2.1
UNPACK THE UNIT

2.2
POWER SUPPLY

2.3
CONNECTIONS

2.4
RACK MOUNTING

2.5
OPERATION
SAFETY

A 2 –Installation

2.6
SYNCHRONIZATION
OF
DIGITAL OUTPUT

2.7
AUDIO
CONNECTIONS

The digital transmission processor d07 has a digital signal output. For the
problem-free combination of following digital devices, the digital signal
processing can be locked to an external clock reference. The selection of the
corresponding sync source is made in the SYNC MODE menu during setup. If
the chosen sync input is connected with the sync signal, this signal is used for
synchronization automatically. All sync sources can be used for locking A/D­converters at the analogue inputs as well. The digital output signal can be
clocked with the following clock frequencies:

INTERNAL locks both the A/D-converters and the digital output with
the internal reference 44,1 or 48 kHz. Digital inputs are
connected via sample rate converter
AES INPUT locks with the clock frequency of the input signal at

digital input CH 1/2 (AES/EBU, 44,1...48 kHz)

EXT AES locks with the AES signal at the sync input

(AES, 44,1...48 kHz) Digital inputs are connected via sample
rate converter

EXT WCLK locks with the word clock signal at the sync input

(WCLK, 44,1...48 kHz) Digital inputs are connected via sample

rate converter
optional:
EXT VIDEO locks with black burst at sync input (internal 48 kHz) Digital

inputs are connected via sample rate converter

The analog audio inputs are RFI filtered and analogue outputs are balanced
and floating like transformer coupled devices. All the audio connectors are via
rear panel mounted connectors. Standard XLR connectors are used. These
are always wired to the AES standard:

pin 1 X Screen screen
pin 2 L Live audio 0°
pin 3 R Return audio 180°.

Balanced connections are preferred whenever the other equipment provides
balanced inputs/outputs. All line level connections should be wired with twin
screened cable for low noise and reliability. The screens of the cable should be
connected at one end only. Input cable screening therefore needs to be
derived from the signal source end as pin 1 is ground lifted at low frequencies
for the inputs.

If the equipment driving the digital audio level processor d07 has unbalanced
outputs then you will need to add a wire jumper such that the screen
connection of Pin 1 of the XLR is shorted to Pin 3.
If the equipment being connected to the d07 have only unbalanced inputs, then
we recommend still to use a balanced (i.e. 2 core shielded cable) cable where
Pin 1 and Pin 3 are connected in the cable ends away from the digital audio
level processor d07.

A 2 –Installation

The digital audio toolbox b40 can be remote-controlled by means of parallel
GPI contacts.

use

: remote-controlled changeover of presets

connector: D-SUB 15pin, female

Pin assignment of the connector :

Pin Signal name Functions

1 GPI1 in Defined by d07 config
2 GPI2 in Defined by d07 config
3 GPI3 in Defined by d07 config
4 GPI4 in Defined by d07 config
5 GPI5 in Defined by d07 config
6 GPI6 in Defined by d07 config
7 GPI7 in Defined by d07 config
8 GPI8 in Defined by d07 config

9 + 5V 110 Ω
10 GPI1/GPI2 common
11 GPI3 common
12 GPI4 common
13 GPI5 common
14 GPI6 common
15 GPI7/GPI8 common

Shield GND

Electrical specification:
GPI input potential free by opto-coupler in line with
a current source

ON: +3.5…+30V between GPIx input

and GPx common

OFF: less then 1.5V between GPIx input

and GPIx common

For serial numbers S/N 182 and higher (HW Revision 2 and higher) the
polarity of the GPI inputs has been changed. to make use of the internal

ground based auxiliary 5 V for "low active" switching.

ON: -3.5…-30V between GPIx input
and GPx common
OFF : less then 1.5V betwee GPIx input

and GPIx common

Signal duration must be at least 50msec.
Note : An internal auxiliary voltage feed of +5V is available on pin 9

via a 110 Ω resistor. Ground is available from the shield of the connector
only! When using the auxiliary voltage feed, there is no electrical isolation
given anymore and the risk to inject unwanted noise is high!

Important Note : You must take care about the polarity of the external

voltage applied to the GPIs. Wrong polarity may destroy electronic

components

and may cause fire inside the d07!

2.8
REMOTE
CONTROL

2.8.1

GPI REMOTE
CONTROL
(PARALLEL
REMOTE)

A 2 –Installation

2.8.2

TALLY OUT

The digital audio level processor d07 can transmit specific device statuses via
parallel Tally lines.

use

: monitoring of the d07 status
Connector : D-SUB 25pin, female
Pin assignment of the connector :

Pin Signal name Functions

1 Tally 1 normally closed
2 Tally 1 normally opened Defined by d07 config
3 TALLY 2 common
4 Tally 3 normally closed
5 Tally 3 normally opened Defined by d07 config
6 TALLY 4 common
7 Tally 5 normally closed
8 Tally 5 normally opened Defined by d07 config

9 Tally 6 common
10 Tally 7 normally closed
11 Tally 7 normally opened Defined by d07 config
12 TALLY 8 common
13 + 5V 110 Ohm
14 TALLY 1 common
15 Tally 2 normally closed
16 Tally 2 normally opened Defined by d07 config
17 TALLY 3 common
18 Tally 4 normally closed
19 Tally 4 normally opened Defined by d07 config
20 TALLY 5 common
21 Tally 6 normally closed
22 Tally 6 normally opened Defined by d07 config
23 TALLY 7 common
24 Tally 8 normally closed
25 Tally 8 normally opened Defined by d07 config

Shiled

Electrical specifications:
GPO (Tally) potential free relay contact

common / normally closed / normally opened
24V - 1A
125V - 0,5A
P

Note : An internal auxiliary voltage feed is available on pin 9 via a 110Ohm
resistor. Ground is available from the shield of the connector only!
When using the auxiliary voltage feed, there is no electrical isolation given
anymore and the risk to inject unwanted noise is high!

= 62,5VA

max

A 2 –Installation

The d07 can be remote-controlled by means of serial remote RS-232/422 or
via the CAN-bus.

use

: remote-controlled changeover of presets
protocol: available on request
Connector : D-SUB 9pin, female

Pin assignment of the connector in serial interface mode :

Pin Signal name Functions
1 Rx + RS422
2 TxD RS232
3 RxD RS232
4 NC not used
5 GND Ground
6 Rx - RS422
7 NC not used
8 Tx - RS422
9 Tx + RS422

Pin assignment in CAN-bus mode :

Pin Signal name Functions
1 NC Not used
2 CAN-l CAN-bus low signal
3 NC Not used
4 NC Not used
5 GND Ground
6 GND Ground
7 CAN-H CAN-bus high signal
8 NC Not used
9 NC Not used

This connector has multiple functions which may be internally changed by
connectors and jumpers. The factory default format setting is RS232 and the it
is connected with the serial interface of the LAN Controller.
By using a terminal program (115kB/sec. 8,N,1 no flow control) you may
communicate with the consol of the LAN Controller, e.g. to change the IP
configuration of the device.

2.8.3

SERIAL REMOTE
CONTROL
(RS-422)

A 2 –Installation

2.9

LAN INTERFACE

Connector
Pin assignment of the connector :

Pin Signal name Functions
1 TX + Ethernet send
2 TX - Ethernet send
3 RX + Ethernet receive
4
5
6 RX - Ethernet receive
7
8
9

Electrical specifications: 100Mbit/s auto negotiation port
Application remarks :
This port allows the remote control of the d07 by TCP/IP over Ethernet.

Setting up the network configuration is described in B 6.
The LAN Controller of the d07 has a web server which offers a graphical user

interface (GUI). For proper operation you need IE7 or FireFox 2.0. There you
input the IP address of the d07 as an URL.

d07 control block diagram :

: RJ 45 with status LEDs

A 2 –Installation

LOCATION OF PARTS AND CONTROLS

A 3

PRESET switch :
Load / save / edit presets

ESC
CURSOR UP
CURSOR DOWN
ENTER

REMOTE INTERFACES

9 pin Female connector :
RRS 232 / CAN
RJ 45 connector :
Ethernet

SETUP switch :
Configuration / parameter editing

Status display :

AGC (gain change of Leveller:
AGC+transient processor)
Compressor (without Level Magic)
Peak-Lim
MPX-Lim
Output-Level
MPX-Power

EXTERNAL SYNC IN
Word clock
Video
AES

WORDCLOCK OUT

3.1.
FRONT
PANNEL

3.2
REAR
PANNEL

GPI

15 pin female connector

Tally out
25 pin female

Digital I/O
AES / EBU

Analog I/O
Analog level adjustment

3.3
Switches and
Jumpers for
Configuration

POWER INPUT

IEC mains input connector 85-264V, 50/60 Hz with integrated fuse

REMOTE

serial remote interface RS-422 (232)
connector: 9pin SUB-D, female

GPI

parallel remote interface
TALLY-out open relais contact
connector: 25pin SUB-D, female
GPI-in +3,5…+30V potential-free
connector: 15pin SUB-D, female

SYNC

SYNC IN
or video sync signal (blackburst, 75 Ohm, unbal) or
wordclock sync signal, TTL level, unbal
connector: BNC socket

WCLK OUT
connector: BNC socket

DIGITAL IN

input for AES/EBU standard format
connector: XLR female panel jack

DIGITAL OUT

output for AES/EBU standard format
connector: XLR male panel jack

ANALOG IN/OUT

Analog input to 24 bit A/D-converter
Input floating balanced, XLR connector female
Analog output from 24 bit D/A-converter
Output floating balanced, XLR connector m

Some basic settings can be made by switches and jumpers at the internal circuit
boards of the unit. These settings can occur general changes for operation and sho uld
made by qualified engineering staff only.

Internal

To set any internal jumper or switches it is necessary to open the unit.
PLEASE DO NOT MAKE ANY ALTERATIONS WITH THE MAINS STILL
CONNECTED TO THE UNIT!

Loosen the screws on the top cover and remove. Then you can see all jumper and
switches as shown in the drawing below. After setting of jumper or switches
reassemble the unit in opposite order.

input for ext. sync signal (AES 3 format, 75 Ohm, unbal)

output for word clock (system clock of d07)

Selection of the serial remote interface

A

D06/07

DSP card

J2 – RS-232 / RS-422: Selection of the serial remote interface (see 3.8.3)
J3 – A / B: for factory use only, set to A

J2
232/422

J3

/B

Main board

calibration of the analog in-and outputs

At our factory the d06 is calibrated German broadcast standard +15dBu = 0dBFS. If
you want to use a different referencer standard (say +24dBu = 0dBFS) you can change
the setting via dip switches on the main board of the d06.

Æ The switches are near the analog input and output hardware on the PCB.

With factory setting of +15dBu=0bBFS the dip switch “+15dBu” will be turned ON.
To change the setting to another standard you just have to slide this dip switch to
the right (OFF) and slide the needed dip switch that corresponds to the reference
standard you are using to the left (ON).

Æ Make sure that there is always just ONE dip switch turned ON!
Exception: They may all be OFF if you are using a CUSTOM reference level

CUSTOM Refernce Level (using Switch 6 ADJ)

If none of these stansard reference settings correspond to your needs you can set
the refernce to a CUSTOM level by adjusting the input sensitivity by the two
potentiometers (L and R) next to the analog input and output connectors at the rear
of the box.

Æ This should only be done by experienced engineers with measuring instruments!

To set the reference level manually, follow these steps:

1. Set all dip switches to “OFF” except #6, ADJ. –set it to ON

2. Adjust the potentiometers to the desried CUSTOM reference (setting). For this you
need to feed the analog input with a known refernce level and measure the digital output.
Make sure that the DSP processing is bypassed, otherwise there could be DSP gain
active!

3. When the adjustments are complete, ‘capture’ the custom settings by setting dip switch
#6 to OFF.
Otherwise your reference level could be changed by accident at the potentiometers.

rear of the box. This should only be done by experienced engineers
with measuring instruments! After having adjusted the input level bring
the dip switch back to the “OFF” position.

Operation

4

The d07 transmission processor is very easy to use.
You can do all settings with the keys on the front of the device, via

remote or software.

The d07 uses two groups of data, in the CONFIG area to set up
device functions (selection of an input, synchronization or input of a
device name) and in the PARAMETER area to control the signal
processing (setting up processing parameters, MPX-limiter, etc.).

SETUP

directs to the set up menus. Here one can select between
CONFIG for device related settings and PARAMETER for signal
processing settings.

PRESET

PRESETs.

All current data is kept in a non volatile memory. Therefore they are
immediately available when turning on the device. All changes to a
parameter are effective immediately. Pressing
By pressing
returns to the parameter menu.

Loading of a PRESET will immediately carry over the values into the
operating memory. By clicking free cross fade they will be effective
immediately.

There is the possibility to edit and store PRESETs in the back ground,
without taking them over into the operating memory to prepare the
device for a different kind of program that is awaited.

NAVIGATION through menus of the d07 is done by the

- exit settings

- stores altered values

- directs back to the previous navigation level

- back to the previous navigation level

and - switching status like ON or OFF

directs to loading, saving and editing of one of the user

ENTER

ESC

the changes will be rejected and the display

ENTER

- directs into the next possible navigation level

ESC

- abort (changes are rejected)

- scrolling through the navigation level

- altering of values

ENTER ESC

keys :

will approve it.

A

4.1 FRONT PANEL

OPERATION
Function of the
d07 keys

4.1.1.
NAVIGATION

A 4.1. – Front Panel Operation

*

4.1.2.
MAIN DISPLAY

4.1.3.
MENU
Preset / Setup

Menu item

PRESET

LOAD PRESET Preset 1-4

EDIT PRESET Preset 1-4
SAVE PRESET Preset 1-4

* When you switch on your d07 or initialize it, the “initialize” preset is loaded.
Before you start checking the parameters of the d07 you should load one of the factory presets.
Choose the one most fitting to the genre of your program (see list below).

When you switch on the d07 the main display will show you the current
controller software and hardware version of your device. You can always
have a look on it by pressing

PRESET

).

ENTER

if you are not in a menu (

SETUP

or

After a few seconds the main display switches to showing the input level
(R/L).

By pressing you can step through the following status details:

Display
MAIN DISPLAY

D07 C:xx D:yy
L: xxx R: xxx

D07 DEVICE
PRESET x: yyyy

MPX-POWER -14.9dB
AGC 0.0 dB
BAL R: 0.0dB

Description

Device, Controller software, DSP version
Input Level channel L/R in DBFS/dBr (CONFIG

out meter)
Device name, 16 characters possible(CONFIG
device name)
Shows current preset

Shows actual MPX-Power of the output signal
Instantaneous value of the AGC gain

The chart on the following pages gives an overview over the menu structure,
its parameters and the available ranges:

Value/range Description

TV U
R U
R SP
TV L
TV M
R CL

User presets
TV universal
Radio universal
Radio Sports
TV live
TV movie
Radio classic
Here you can change the settings of your

individual presets
Here you can save your individual preset in
one of 4 available user presets

A 4.1 – Front Panel Operation

LIMITER

SETUP

CONFIG

INPUT INPUT 1: analog

LEVEL MAGIC OFF/ON
PASSWORD 1 2 3 4 (factory preset)

LOCK OFF/ON

OUT METER dBFS/dBr
DEVICE NAME 16 characters possible

CAN ID 00-99

TALLY 1-8

GPI 1-8

SYNC

INPUT 2: digital

off, preset 1-4, stereo, Exp,
Compr, Lim, Preemp, Clip,
Input2, Bypass

off, preset 1-4, stereo, Input2,
Bypass

Video, Wclk,Ext AES, Input
AES, INT 44.1, INT 48

Select the input mode according to your
input signal (analog/digital AES/EBU)

switch Level Magic off/on
Set your own password to lock the device
Device can be protected against accidental
changes while transmission operation
Select between the display of relative
output level in dBr to the setup value of the
limiter or absolute value in dBFS
Set your individual device name
Device address for the CAN-bus for the
remote control (optional)
8 TALLY outputs are carried out as relay
change –over switches. One of 12 states of
the d07 can be allocated to them
GPI input are carried out as opto coupler
driven by a current source. One of seven
predefined states of the d07 can be remote
controlled by them

Selection of the SYNC source

PARAMETER

GAIN -20 to +20dB Setting the initial gain
STEREO OFF/ON

FILTER
PREEMPHASIS PRE MODE OFF/50µs/75µ

PEAK-LIMITER

MPX-

EXPANDER EXP THRESH OFF/-20 to -60dBFS

AUTO-BALANCE BAL RANGE 0 to 20dB

15kHz

PRE THRES

LIM THRESH

LIM PROG

POWER

PROCESSING

New parameter for

firmware version

2.0.1. and higher

EXP RANGE OFF/-0 to -20dBFS
EXP ATTACK 0,2 to 4sec

BAL TIME

For stereo operation with the d07 the
control circuits of the dynamic sections can

30Hz

OFF/ON Switching off/on 30Hz low cut filter
OFF/ON

determines the max output level of the d07

Pop, speech, uni, live, classic

-4 to +4dB / OFF Limits the power of the MPX-signal

soft/mid/hard

1,2,5,10,20,40sec/min, 1h, 2h

be linked
Switching off/on 15kHz-FIR-Filter

The d07 controls high frequency signal
components to adapt the audio signal to
the predefined pre-emphasis.
Setting has to be equal/bigger than the
Limiter Thresh (see B 5.3)

Characteristic of the LIMITER can be
adapted to the program material

soft –moderate mpx limiter performance as
integrated in d07 firmware up to version

1.9.0
mid – faster performance of mpx limiter
hard – very fast reaction to mpx power
changes
Levels lower than EXP TRESH will be
lowered => Enhancement of S/N ratio,
active after AGC

In stereo mode the balance between the
two channels can be controlled
automatically (reference: left channel), e.g.
valuable if there are level changes on the
transmission path

A 4.1 – Front Panel Operation